Update version requirement to 0.9.10 which handles custom format --format argument.

Author: mmaday

README.md

@@ -20,7 +20,7 @@ Before using this plugin, you must ensure that `htmlhint` is installed on your s
 
 1. If you are using `nvm` and `zsh`, ensure that the line to load `nvm` is in `.zshenv` and not `.zshrc`.
 
-**Note:** This plugin requires `htmlhint` 0.9.8 or greater. Upgrade your existing installation by running step 2 above.
+**Note:** This plugin requires `htmlhint` 0.9.10 or greater. Upgrade your existing installation by running step 2 above.
 
 ### Linter configuration
 In order for `htmlhint` to be executed by SublimeLinter, you must ensure that its path is available to SublimeLinter. Before going any further, please read and follow the steps in [“Finding a linter executable”](http://sublimelinter.readthedocs.org/en/latest/troubleshooting.html#finding-a-linter-executable) through “Validating your PATH” in the documentation.

linter.py

@@ -22,7 +22,7 @@ class Htmlhint(Linter):
     cmd = ('htmlhint', '--format', 'json')
     version_args = '--version'
     version_re = r'(?P<version>\d+\.\d+\.\d+)'
-    version_requirement = '>= 0.9.8'
+    version_requirement = '>= 0.9.10'
     # empty regex so plugin initializes properly
     regex = r''
     tempfile_suffix = '-'

messages.json

@@ -1,5 +1,6 @@
 {
     "install": "messages/install.txt",
     "1.0.1": "messages/1.0.1.txt",
-    "1.1.0": "messages/1.1.0.txt"
+    "1.1.0": "messages/1.1.0.txt",
+    "1.1.1": "messages/1.1.1.txt"
 }

messages/1.1.1.txt

@@ -0,0 +1,10 @@
+SublimeLinter-contrib-htmlhint 1.1.1
+------------------------------------
+This plugin has been rewritten to handle the latest output formats of htmlhint version 0.9.10 and later. It now parses the JSON output of htmlhint.
+
+*** NOTE: htmlhint version 0.9.10 and greater is now required. ***
+
+Upgrade your existing htmlhint to the latest by running:
+npm install -g htmlhint@latest
+
+Please refer to https://github.com/mmaday/SublimeLinter-contrib-htmlhint for complete installation instructions.